Blind-stile-boring machine.



No. 645,822. Patenfed Mar. 2o. |900. H. L. MANNlNG.

BLIND STILE BORING MACHINE.

(Application led Apr. 22, 1899.)

(No Model.)

TN: mums PETERS no. PHoTo-LITHD., v/AsHlNoToN, DA c.

Patented'mar. 2o, |900. H. L. MANMNG.

BLIND STILE BRING MACHINE.

. (Application med Apr. 2g; 1899.) No Model.)

'7 Sheets-Sheet 2 [Manilow- ZZMUZMZ'T 0. 0 m .0., 2 r. a M d e t n e t aP .Hw .Nl N N A M L H. L 2 8, 5 4 6 D. N

- BLIND STILE BORING MACHINE.

(Applicazimi med Apr. 22, 1899.)

7 Sheets-Sheet 34 V(un Model.)

lull llllllll II llllll nl Mw Wi No. 645,822. Patented Mar. 20,1900.

H. L. MANNING.

BLIND STILE BORING MACHINE. (Application med Apr. 22` 1899.) (No Model.)\7 Sheets-Shaet 4.

.we wams mns co.. Puofovurm., wAsHmmsN. u. c4

No. 645,822. Patented Mar. 2.0, |900.

H. L. MANNING.

BLIND STILE BORING MACHINE (Appli'cation leg Apr; 22, 1899.) (No Model.)7 shame-sheet 5 gm" u, MHZ

No. 645,822. Patented Mar. 20, |900.

H. L. MANNING.

BL|ND` STILE BORING MACHINE.

(Application led Apr. 22, 1899.) (No Model.) 7 Sheets-Sheet 6.

No. 645,822. Patented Mar. 20, |900.

H. L. MANNING.

lBLIND STILE BORING MACHINE. (Apblication sled Am. 2'2 1999.) (NoModel.)

, 7 sheets-sheer 7,.

UNiT-nn STATES PATENT Tries.

HUGH LOUIS MANNING, OF PHILADELPHIA, PENNSYLVANIA.

4BLlNlD-STILE-BORING MACHINE.

SPECIFICATION forming part of Letters Patent N o. 645,822, dated March20, 1900.

` Application tied April 22,1899. serrano. 714,045. (Nomaden To @ZZwhom, it may concern:

Be it known that I, HUGH LOUIS MANNINe, a citizen of the United States,residing in Philadelphia,v Pennsylvania, have invented certainImprovements in Blind-Stle-Boring Machines, of which the following isaspecification.

The object of my invention is to construct a machine for boring holes ina series of blind stiles or frames simultaneously, the holes thus boredserving to receive the pivot ends of the blind-slats.

My invention relates particularly to the mechanism for feeding the bedon which the i blind stiles or frames are clamped, said mechanism beingarranged and operating in such.

manner that the holes will be properly spaced, each stile will becompleted, and the table returned .without interruption, the feedingmechanism being also automatic, so that the blind-Stiles will be movedVlonger distances at intervals to allow su fiicient space for thecrossrails of the blind. The machine is so arranged that these spacescan be varied according to the design of the blind stile or frame.

In the accompanying drawings, Figure 1 is a side view of my improvedboring-machine. Fig. 2 is a plan view of the same. Fig. 3 is alongitudinal section of the machine on the line 3 3, Fig. 2. Fig. 4 is atransverse section of the machine on the line 4 4, Fig. 1. Fig. 5 is atransverse section of the machine on the line-5 5, Fig. 1. Figs. 6, 7,and 8 are detail transverse sectional views showing special features ofthe machine. Figs. 9, 10, and 1l are sectional plan views on the line 99, Fig. 1,showing the parts in different positions. Fig. l2 is a detailplan view of the device for clamping the stiles on the bed ofthemachine, said clamping device being shown in the retracted position.Figs. 13, 14, and 15 are detail views of the adjustable feed-rack. Figs.16 and 17 are detail views of the devices for stopping the rotation ofthe feed-cam. Figs. 18 and 19 are detail views of the stops arranged ateach end of the table. Fig. 2O isa detail view showing the means forfeeding the boring-tools to the work. Fig. 21 is a detail view of thedevice for moving the shifting-lever. Fig. 22 is a longitudinalsectional view of the table. Fig. 23. is a detached view of thefeed-cam. Fig. 24 is a detached view of y ing upon a rack underneath thebed.

the floating lever, and Fig. 25 is a plan view of the lowershifting-bar.

In the drawings, A is the frame of themachine, and B is the slidingtable, on which are clamped the stiles of the blind-frame which are tobe bored to receive the pivot ends of the slats. Mounted on the frame Ais a stand-l ard C, which carries the drill-spindles for boring theholes in the stiles.

Before describing in detailthe construction I will explain the generaloperation of the machine forming the subject of my invention. v

A series of blind-Stiles to be bored are clamped on the tableB and thedifferent parts of the mechanism of the machine are set for the lengthof stile to be bored and for the spaces for the cross-rails. Thedrill-spindles are then set to register with the center of each stile ofthe series to be bored. The machine is then put in motion and the tableB is fed forward intermittently by a suitable cam act At each revolutionof this cam the table will be fed forward the distance of one tooth ofthe rack beneath the table. During the intervals of rest between theintermittent movements of the table the drills are forced downward bysuitable mechanism against the series of Stiles, boring holes in eachone simultaneously. After this operation the drill-spindles recede andthe cam again acts to move the table the distance of anothertooth of therack and so on during the boring of the holes in the stiles. When thespace for one of the cross-rails of the stile is reached, the cam islocked against rotation and other mechanism feeds the table a distanceequal to the space required for the cross-rail, after which the cam isreleased and acts to feed the table forward intermittently, as before,to permit the boring of the holes in the stiles until the space foranother cross-rail is reached, when the operation just described isrepeated. After one set of stiles have been bored the table isautomatically returned to its original position, the iinished Stiles areremoved from the same, other blanks are then clamped to the bed, and theforegoing operation is repeated.

Referring now to thel drawings forming a part of this specification, Iwill iirst describe the drilling mechanism which I employ with IOO theimproved machine forming the subject of my invention.

Adapted to slide horizontally on the standard C is a frame C', havingVertical guides c for a frame C2, in which are mounted a series ofvertical shafts c for driving a series of drill-spindles c2. The frameC2 has a horizontal slot c3, through which a series of screws extendhaving thumb-nuts c4, and these nuts serve to secure the frame Czto theframe C. Extendingly upwardly from the frame C' are two slotted bars e5,adjustably secured to a cross-head C3 by means of thumb-nuts c6. Onloosening these thumb-nuts the frame carrying the drills can be raisedor lowered, and by loosening the thumb-nuts c4 the lateral position ofthe drills can be altered.

The drill-spindles c2 are geared together by pinions c7, some of thespindles of the drills being directly connected to the driving-shafts c.The drill-spindles c2 are driven by the shafts c', which receive theirmotion from a drum c on a shaft 010 by means of belts cs, which passaround belt-pulleys on said shafts c and around the drum C9. rIhe shaft010 may be driven in any suitable manner, and in the present instance itis driven from a shaft W by a belt yw, the shaft YV being driven fromthe main driving-shaft F by means of a belt w', as clearly shown in Fig.2.

The drill-spindles c2 are operatively connected to the cross-head C3 andare carried by the same int-o and out of' engagement with theblind-Stiles to bore the holes therein in the following manner: Thecross-head C3 is carried by two vertically-reciprocating bars c4,connected to operating-levers C5 by links or connecting-rods C6. Thelevers C5 are operated to lower the cross-head carrying the spindles bymeans of cams c, mounted on a shaftD, arranged below the table of themachine. These cams areof the peculiar shape shown in Fig. 20, and theyengage antifriction-rollers carried by the operating-levers C5. Theshaft D is driven from the shaft F3 by means of a pinion d on said shaftFs meshing with a gear-wheel d', carried by the shaft D, more fullydescribed hereinafter.

The levers C5 are pivoted at cl2, and springs C13 and c, the formerbeing located below the table of the machine and the latter adjacent tothe frame C', are used to return the said levers and the drill-frame totheir elevated position. It will be understood, however, that positivemechanism, such as a cam, may be used, if desired, as an equivalent forthese springs.

It will be noticed on reference to Fig. 2O that the cams c11 are soshaped that they will gradually feed the drills into the stiles; but assoon as the work is completed they permit the drill-frame to beimmediately returned to its normal position by the springs c13 and c14as the faces of these cams change abruptly from high to low,'therebyreleasing quickly the engagement of the projections on the levers On theunder side of the table B are grooves adapted to lit over the V-shapedribs projecting from the top of the frame, which latter act as guidesfor the table. Projecting beneath the center of the table in the presentinstance is a barb, (shown clearly in Figs. 13 and 14,) and this barconsists, preferably, of a piece of angle-iron. Secured to the dependingportion ot' this bar are rack-sections formed of toothed plates D andb2, one placed directly back of the other, and these rack-sections aresecured to the bar I) by screws b3. The teeth of these rack-sections areof the shape clearly shown in Fig. 13, having vertical forward edges andbeveled backs, so that the camshaped projection e on the wheel E, Figs.3 and 23, will act upon said rack-sections and feed the table forward.As shown in Fig. 3, there are four sets of rack-sections, spaced apartpredetermined distances to correspond with the cross-rails that unitethe Stiles of the finished blind. As arranged in the View each pair ofplates forming the sections is contracted and the machine is set todrill the smallest size of blind. lVhen it is wished to increase thenumber of holes in each stile to make a longer blind, the screws b3 areremoved, and as there are a series of holes in each plate h and b2 ofthe rack-sections, corresponding with the teeth of the same, it is onlynecessary to move one plate past the other, so as to increase the lengthof the sections and the number of teeth in each, and then secure the twoplates b and b2 to the depending bar b by passing the screws through theproper holes. These screws not only clamp the plates forming thesections to the bar b, but they also bring the teeth of therack-sections into proper alineinent, so that it is impossible for theattendant to make a mistake in setting the machine for different-sizedblinds. When the plates b and b2 are drawn out, as shown by dotted linesin Fig. 13, one end of the plate b is unsupported, and at this endl usea U-shaped filling-piece b4, Fig. 15, which is placed between theplate 1) and the depending portion of the bar h, so that when the screwdraws the plate up it will be perfectly rigid. Y The U-shapedfilling-piece has a lip on the under side by which it can be readilyremoved or replaced.

Referring now to Figs. 16, 17, and 22, Iwill describe the lugs whichalternate with the rack-sections for the purpose of locking thefeed-wheel when it is desired to move the table from one rack-section tothe next. In a T- shaped groove b5 in the under side of the table B areslides h6, carrying lugs D7, bs, and Z9, which project from theunderside of the table. These lugs are secured to the slides h by screwsin the present instance, so that by backing ott the said screws theslides, with their lugs, are free to be moved longitudi- 1 nally on theunder side of the table in order that they may be arranged in properposition to alternate with the rack-sections described above and asshown in Fig. 22. The lugs D7 IOL represent the space occupied by thecrossrails, which extend lfrom one stile to another. If the cross-railsare all of the same width, then all of the lugs 67 are of the same size;but if, for instance, the machine is set as shown in Fig. 3, so that thecentral cross-rail is about twice the width of the ones on each side ofit, then the central lug is of a width to correspond. The lug bs at oneend of the table is longer than the lugs 57, and the lug b9 at theopposite end of the table is still longer than the lug bs, as shown inFig. 22, and these lugs are thus arranged so as to keep the cam-wheel Eout of engagement with the rack-sections on the table until theintermittent feed is de'sired. As soon as the drills have completedtheir work the longer lug b9v at the end of the table throws thecam-wheel E out of gear and keeps it out of gear until the table isreversed.

F is the main driving-shaft of the machine, mounted in suitablebearings, as shown clearly in Figs. l and 4, and is provided with fastand loose pulleys f and f. This shaft has a belt-wheel F, around whichpasses a belt f2 to a pulley f3 on a shaft F2, on which is a drum f4. Ona shaft Fl are fast and loose pulleys f5 and f6, around which pass abelt f7 from the drum f4. Shifting mechanism, which will be describedhereinafter, serves to move the belt f7 either from the fast to theloose pulley, or vice versa, at certain intervals. On the shaft F3 is apinion d, and on the shaft D is a gear-wheel d', meshing with the piniond, so that slow motion is imparted to the shaft D through the gearingabove described. Carried by the shaft Dare the cams cu for actuating thedrill-frame, as fully described above, and mounted also on this shaft isa bevel-wheel d2, meshing with the bevelwheel d3 on the shaft E', whichcarries the cam-wheel E. The cam-Wheel E has arranged on its periphery aprojection e, which performs the function ofa Worm or cam. As clearlyshown in Fig. 23, I preferably make this projection a portion of adetachable plate set into the periphery of the cam-Wheell E and securedtherein by screws, so that it can be removed when necessary. By thisarrangement the cam-section can be removed and replaced when wornwithout discarding the entire wheel and without dismantling the machine.This projectionor cam-section e engages the teeth of the rack-sectionsformed by the plates h' and b2, as clearly illustrated in Figs. 3 and'7, so as to feed the table forward the proper distance, represented byone tooth of lthe rack-sections, at each revolution of the wheel E. Inthe present instance I have arranged the projection e on the camwheel insuch a manner that the table will be moved by said projection during thefirst period of the revolution of said cam-wheel, such movement beingless than a quarter-turn of the wheel. During the balance of themovement of said wheel, however, the table will remain stationary,allowing sufficient time for the drilling of the holes in the stiles andthe retraction of the drill-spindles before the projection on thecam-wheel cornes into position to move the table forward again.

Referring now to Figs. 4 and 7, I will describe the mechanism forthrowing out of action the cam-wheel E to permit the forward movement ofthe table independently of said wheel, the drill-spindles being kept outof action at the same time. NVhen that portion of the series of stilesrepresenting the space for a cross-piece comes beneath the drill-frame,it is necessary to stop the drilling mechanism and move the tableindependently of the camwheel E. The cam -wheel E is therefore thrownoutof action at this point and independent mechanism for feeding the tablebrought into action, so that while the table will be fed forward,carrying the stiles the proper distance to bring them into position toreceive the rst of the next series of holes, there will be no movementof the drill-spindles until the Stiles are in this predeterminedposition. The mechanism for putting the wheel E out of action is asfollows: At the bottom of the frame A is a ixed cross-bar A', on whichslides a belt-shifter g, pivoted at g/ to what I term a floating lever G(shown in detached view, Fig. 24) and so called because although pivotedlto the belt-shifterg it is not positively connected to any otherportion of the machine. This lever extends up to a point directly underthe table B, as clearly illustrated in Figs. 4 and 7, and has a lng g2adjacent to the shaft E', carrying the camwheel F.. The lever is heldagainst the shaft E by means of a spring g3, and this spring also tendsto keep the belt-shifter in its normal position (shown in Fig. 7) whenthe table is feeding forward. Mounted on the face of the cam-wheel E isa pin e', which engages the floating lever G, and as the cam-wheelrevolves to feed the table during the boring of the holes it simplypushes back the upper end of the lever G, and this action takes place atevery revolution of the cam-wheel. If, however, the position of thefeed-table brings one of the lugs b7.in the path of movement of theupper end of this lever G, the said lug will act as a fulcrum for thelever, so that when the pin e', carried by the cam-wheel E, pushesagainst the lever, asin Fig. 4, instead of the lever being pushed out ofthe way, asbefore, its lower end will be moved against the pressure ofthe spring g3, and this end of said lever being connected to thebelt-shifter g the latter will be moved, transferring the belt f7 fromthe fast pulley f5 to the loose pulleyf, thus stopping the rotation ofthe shafts F3, D, and E and putting the cam-wheelE out of action. Vh'enin this position, the lug g2 on the lever G forms a stop for the pin.e', carried by the cam-wheel E. This pin is preferably provided with anantifriction-roller.

In order to bring the independent mechanism for moving the table intoaction simultaneously with the putting out of action of IOO IIO

i Massa the cam-wheel E, I connect a pulley-shifting bar G' (shown inFigs. 9, lO, and ll) with the belt-shifter g by means of a lever g4,pivoted at g5 to a cross-bar g, sothat when the beltshifter gis moved toshift the belt f7 from the fast to the loose pulley, as described above,the pulley-shifter is so moved that the forward feed-pulley 7L on theshaft H (see Fig. 5) will be brought into position to drive the tablethrough this independent mechanism, which will shortly be described. Aspring Q7 serves to keep the pulley-shifter G' in the central position,as shown in Fig. ll. As the table is moved forward by the independentmechanism the lug 797 will pass the upper end of the lever G, therebyreleasing said lever and permitting the spring g3 to act on thebelt-shifter g to move the belt f7 back onto the fast pulley f5. Thereturn of the lever G to its normal position brings the pulley-shifterG' back to its original position, throwing the pulley 7L out ofengagement with the shaft H, thereby stopping the independent feed of`the table, and the latter is then free to be moved by the cam-wheel E,as before.

The shaft I-I is adapted to bearings in the lower portion of the frame Aof the machine, and secured to each end of this shaft are bevel-pinionso', meshing with bevel-pinions 0", carried by vertical shafts I-I',through which medium said vertical shafts are driven by the shaft H.Loosely mounted on the shaft H are the pulleys 7L and 7a2, controlled bythe pulley-shifter G'. Each of these pulleys has an annular grooveengaged by lips 7'2,carried by said pulley-shifter. The shaft H carriesa pin 7L', and each of the pulleys 7L and h2 carry pins 7a3 and 7b4,respectively, the pins ofthe pulleys alternately engaging the pin 7L' onthe shaft H as the said pulleys are moved by the shifter Gr'. Vhen thecamwheel E is in operation and the table is being fed thereby, thepulley-shifter is in the midposition, as shown by full lines in Fig. ll,both pulleys 71 and 7b2 being out of engagement with the shaft H. W'henthe shifter G is moved as before described, however, the pulley 7L isbrought into engagement with the pin 7L' on the shaft H, and as thispulley is driven by a suitable belt from a driving-pulley on the shaftYV it will drive the shaft H forward, which in turn will drive thevertical shafts H' through the medium of the bevelpinions 0' and fr'.The shafts H' have pinions 715 at the top of the same, which mesh withpinions 7L, mounted on studs on top of the frame A, as shown in Fig. 2,these latter pinions gearing with toothed racks B', secured to the tableB. By this means the table will be fed forward by the movement of theshaft H during the time the cam-wheel E is out of action. Vhen the tablereaches the end of its movement, the pulley 7b2 is brought intoengagement with the pin 7L' on the shaft H to drive the shafts H', andas the pulley 7a2 is driven in a reverse direction to the pulley 7L bymeans of a crossed belt from the driving-pulley on the shaft W theshafts H will be rotated in a reverse direction through the medium ofthe bevel-pinions r and o", and this movement being transmitted by thepinions 7t5 and 706 to the rack I3' of the table the latter will bereturned to its original position. In order to make this operationautomatic, I use stops 0c, as shown in Figs. 18, 19, and 22, which stopsare secured to the under side of the table at each end of the same bymeans of headed bolts, the heads of which are adapted to the T-shapedgroove b5 in the table, so that the lugs or stops can be adjusted toshift the table at any point in its movement.

.The mechanism operated by the stops so to shift the table will be morefully described hereinafter.

I is a longitudinally-movable shifting-bar adapted to suitable guides inthe base of the machine and having projections 1l, t", i2, and i3,(clearly shown in Fig. 25,) which projections engage the belt-shifter g,pulley-shifter G', and other parts of the mechanisln to be shortlydescribed. In the plan view shown in Fig. 9 this mechanism is in theposition shown by the main views, Figs. l, 2, and 3.

Depending from the under side of the beltshifter gis a pin 7c, and theprojection 'L' of the shifting-bar I acts on this pin to push thebelt-shifter g over, when the shifting-bar I is moved to the positionshown in Fig. l1, so as to hold the -belt f7 on the loose pulley f 6 ofthe shaft FB, and thus stop the movement of the forward intermittentfeeding mechanism. On the laterally-movable bar g, which is pivoted tothe lever g", connecting the beltshifter g with the pulley-shifter Gr',is apin 7c', against which the projection z" of the shifting-bar I acts,so as to lock this bar gG in the position as indicated in Figs. 9 and l0when the machine is feeding forward and boring, but will allow the bargG to move laterally when the table is returned, as shown in Fig. 11.

On the under side of the pulley-shifter G is a pin 7a2, and theprojection 2 of the shifting-bar I is s0 situated in respect to this pin71:2 that the latter is clear of the projection when the table is movingforward, but when returning the projection passes in front of the pin7.32 and holds the pulley-shifter G', so that the pin h4 on the pulleyh2 will be in engagement with the pin h' on the shaft H, whereby thelatter is turned in a direction opposite to that in which it was turnedby the pulley 7L, thus reversing the movement of the table.

Jis alever (shown clearly in Figs. 3 and G) having two armsjj, carriedby a rock-shaft J', mounted in suitable bearings in the frame. The lowerportion of each of these arms jis connected to the shifting-bar I, andthe upper portions of the arms are connected together by a cross-barj'.Carried by the u pper portion of each arm j is an eye f2, to which areattached ropes n, as shown in Fig. These ropes are secured to and partlywound around a drum N, as shown in Figs. 3, 5, and

ICO

IIO

8. The drum N is loosely mounted on a shaft N', adapted to suitablebearings in the frame of the machine, and said drum is provided with apin n', adapted to engage a pin n2 on the shaft N,whereby the parts maybe brought into operative relation with each other. The drum N is hollowat one end, and carried by the shaft N and adapted to this hollowportion of the drum is a spring n3. 'lhis spring is adapted to move thedrum laterally and maintain the pin n', carried by the same, inconnection with the pin n2 on the shaf t N To move the drum in theopposite direction and hold it when in such position, alever N2 isprovided, said lever bei'n g pivoted at n4 to a crossbar at the lowerpart of the frame and having at the upper end a forked portion engagingpins ni", carried by a yoke n, adapted to an annular groove in the drumN. In Fig. 5 the drum is shown as pushed to one side by the Alever N2,the pins n and n2 being disengaged. In Fig. 8 the lever Nghas returnedto its normal position, and the drum is shown moved over, with its pin nin engagement with the pin n2 of the shaft N', the spring n3 havingacted on the drum to return it to this position. AThe lower arm of thelever N2 is engaged by the projection i3 on the shifting-bar I when themachine is feeding forward and boring, as clearly shown in Figs. 9 and10, to. keep the drum out of engagement with its shaft, so that it willremain stationary. When the shifting-bar I is mov'ed to the positionshown in Fig. ll, however, to allow the table to return, the lever N:2is freed from the control of the projection i3, and the spring n3 willforce the drum N over, so that its pin n. will engage with the pin n2 onthe shaft N, and as this shaft is driven from the driven shaft W bybelts 2v2, which pass around wheels w3 on said shaft N', the drum willbe turned and the rope n will be coiled thereon. As this rope isconnected to the lever J, it will draw said lever over to its fullthrow, as it will be understood that when the stop x came in contactwith the lever J it only moved the latter over to the centralposition,bringing the shiftingbar to the position shown in full lines in Fig. Il.will move the lever J and the shifting-bar I over to the position shownby dotted lines in Fig. 1l, thus completely throwing over thebelt-shifter g, and with it the bar gs, and locking the pulley-shifter Gin such position that the pulley h2 will engage the shaft H in orderthat the table may be returned to its original position by the pinionsh6 engaging the racks B on said table.

On the frame A is a shaft P, (shown in Figs. l, 2, 4, and 5,) having atits upper end a toothed segment p, adapted to be engaged by the teeth ofone of the racks B of the table during the movementof the latter. Atwoarmed spring p is employed to keep the segment in position to beengaged by the rack. On the lower end of this shaft is a rope-wheel 192,to which is secured a rope p3, passing When the drum is turned, however,itv

around a guide-wheel 294, mounted on a stud projecting from the frame,said rope being secured to an eye p5 on the lever N2, as shown in Fig.5. The object of this construction is tol give the shaft P apartiahrevolution by means of its segment p as soon as the table movesforward in order to draw the lever N2 over to the position shown in Fig.5, such action immediately throwing the pin n of the drum N out ofengagement with the pin n2 on the shaft N. On the return movement of thetable the segment Yp will slacken up the rope p3, so that it will haveno control over the movement of the drum N, and the latter willimmediately on the release of the lever N2 be shifted over to move thepin n into engagement with the pin n2 on its shaft N.

By the above mechanism the table is moved forward and automaticallyreturned and is stopped at the end of its return movement. To move thetable forward again, I provide .a starting-lever S, Fig. 21, which ispivoted to the frame at s and is connected to the cross-bar j' bya rods', so that when the stop .fr on the table brings the lever J up toitsvert-ical position all that it is necessary to do to start the tableforward again is to operatev the hand-lever S so as to throw the lever Jinto the position shown in Fig. 3,'when all the parts will be in theproper position to permit the table to be fed forward, and the Stileswill be bored in the proper manner.

Any suitable means may be employed to clamp the stiles to the bed of thetable; but in Figs. 2, 4, 5, and l2 I have shown the form of clampingdevice which I prefer to use and which is constructed and arranged asfollows: I mount on one side of the table B an angleplate T, which isadjustable transversely on the table and may be held in its adjustedpositions by thumb-n uts t, adapted to bolts passing through slots inthe bed of the table. At one end of the table is a stop-frame T', havinga slot t', through which pass bolts t2, secured to the bed of the table,by which means the stop-frame can be adjusted longitudinally on thetable. The ends of the Stiles rest against this stop-frame T while theyare being bored. On the edge of the table opposite the angle-plate T isa clamp V, between vwhich and said plate T the stiles are held.

This clamp'is made in three sections, one section o being fixed to thetable, another section o adapted to be projected against the stiles, anda third section r2 interposed between the sections o and fu', connectedto said sections by links o5, and adapted to be moved longitudinally, soas to force the section o' against the stiles. Springs r4 are employedto draw the sections of the clamp together when the latter is not inuse. The section U is held against longitudinal movement by means of `apin Q25, depending from said section, which pin projects into a slot oin the table. The section o2 is connected bya link @7 to a pivoted leverV, by which means said section is operated to force the section o intoIOO IIO

IZO

engagement with the series of stiles mounted on the bed of the machine.Vhen the lever V' is moved to the position shown in Fig. 9, thesection owill be extended so as to clamp the stiles firmly in position on thetable; but when the lever is moved into the position shown in Fig. 12the Ysection t" will be retracted.

Thus it will be seen that by my improved machine I am enabled toaccurately bore the pivot-holes in the stiles for the blind-slats, andthe machine can be set so as to automatically space the series of holesfor such slats to allow for the insertion of the cross-rails at theproper places, and the stiles can be of any number, any length, and ofany width within the limits of the machine. Vhen the Stiles have beenclamped to the bed and the machine has been set in motion, the holeswill be automatically bored. When a space for the cross-rails isreached, the ratchet feed mechanism will be thrown out of gear, as wellas the boring mechanism, and the table will be fed forward byindependent mechanism already described until the ratchet mechanism anddrilling mechanism are again thrown into gear. lVhen the table reachesthe end of its stroke, one of the stops :c on the under side of the samewill shift the lever J to its central position, and this will throw intooperation mechanism to complete the movement of said lever, so as tothrow it over the full stroke and allow the table to return by a reversemovement of one portion of the feeding mechanism. W'hen the tablereaches a cer- `tain point on its return movement, another stop m willstrike the lever J and throw it again over to the central position andthe mechanism will remain stationary until the hand operating-lever Sthrows the lever J over the full stroke, when the table will again moveforward, as described above.

I claim as my inventionl. The combination in a machine for boring theStiles of blinds, of a frame, a table on which the stiles are mounted,drilling mechanism for boring the holes in the stilcs,means for drivingthe drills, means for feeding the table forward intermittently thedistance from one hole to another, independent means for feeding thetable forward at the points where the cross-bars are located, 'and meansfor automatically returning the table to its original position,substantially as described.

2. The combination of a frame, drilling mechanism carried by said frame,a table on which are mounted the stiles to be bored, a sectional rack onthe table, lugs on the table alternating with the racks, a feed-camacting upon the racks to feed the table forward, and a lever acting inconjunction with the lugs on the table to throw the feed-cam out ofgear, and mechanism for feeding the table forward while the feed-cam isout of gear, substantially as described.

3. The combination in a boring-machine, of a frame, a table adapted totravel thereon as described.

4. The combination of the frame, a table thereon to which the stiles tobe bored are secured, means for intermittently feeding the tableforward, a vertica'llymovable drillframe, drills carried thereby, meansfor rotating said drills, a driven shaft, cams on the driven shaft,levers connected to the drill frame and actuated by the cam whereby thedrills are presented to the stiles, independent means for raising thedrill-frame and drills after the holes have been bored, and mechanismfor moving the table at predetermined intervals independently of theintermittent feed of the latter, substantially as described.

5. The combination of a frame, a table adapted to travel thereon towhich the stiles to be drilled are secured, means for intermittentlyfeeding the table forward, a cross-head mounted onverticallyreciprocating rods, means for reciprocating said cross-head, atransverselyadjustable frame suspended from saidcross-head, avertically-adjustable frame carried thereby, drill-spindles mounted onthe vertically-adjustable frame, means for driving said spindles, andmechanism for moving the table at predetermined intervals independentlyof the intermittent feed of the latter, substantially as described.

G. The combination in a boring-machine, of a frame, a table on which thestiles to be bored are secured mounted thereon, drilling mechanismmounted on the frame and arranged above the table, a bar having adepending portion secured to the under side of the table, a series ofadjustable rack-sections secured to the depending portion of said bar,lugs adjustably secured to the under side of the table and alternatingwith the rack-sections, a feed-cam adapted to engage the teeth of therack-sections, driving mechanism for said cam, a lever engaged by saidlugs and serving to shift the driving mechanism for the feed-cam to throw the latter out of action, and means for feeding the table forwardwhen the feed-cam is out of action, substantially as described.

7. The combination in a boring-machine, of a frame, alongitudinally-movable table mounted thereon, drilling mechanism carriedby the frame, adjustable rack-sections mounted on the under side of thetable, a driven wheel, a projection forming a cam arranged on a portionof the periphery of said Wheel,4

said projection adapted to engage the teeth of the rack-sections wherebythe table will be moved intermittently, and means for holding IOO IIO

said driven wheel out of action, substantially as described.

'8. The combination of the frame, the table mounted thereon, drillingmechanism, a feedrack on the under side of the table, and a driven wheelhaving a removable cam-section engaging the rack of the table wherebythe latter is fed forward intermittently', substantially as described.

9. The combination in a machine for boring blind-Stiles, of the frame, atable adapted to travel thereon, drilling mechanism, a toothed rack onthe under side of the table, a feed cam-wheel engaging said rack to feedthe table intermittently, lugs on the under side of the table, mechanismcontrolled by the lugs to throw the cam out of gear, toothed racks onone or both sides of the table, pinions engaging said racks, a series ofshifting mechanisms for throwing the pinions into and out of gear, andmechanism connecting the several shifting devices so that the table willbe moved bythe racks and pinions when the cam-wheel is out of gear,substantially as described.

10. The combination in a boring-machine, of the frame, drillingmechanism, a table adapted to travel on the frame, ratchet-teeth on theunder side of the table,'a feed camwheel engaging said ratchet-teeth andadapted to feed the table forward intermittently, racks on the edge ofthe table, pinions engaging said racks, mechanism for rotating saidpinions, a belt-shifter controlling the mechanism for rotating saidpinions whereby they may be turned in opposite directions to move thetable forward or back, means for actuating the belt-shifter, stops onthe under side of the table, and reversing mechanism in' operativeengage ment with the belt-shifter, whereby when the stops come incontact with the reversing mechanism, l[he pinions will be rotated so asto return the table to its original position, substantially asdescribed.

11. The combination in a boring-machine, of the frame, drillingmechanism, a table adapted to travel on the frame, ratchet-teeth on theunder side of the table, a feed camwheel engaging said ratchet-teeth andadapted to feed the table forward intermittently, racks on the edge ofthe table, pinions engaging said racks, mechanism for driving saidpinions, a belt-shifter connected therewith whereby the direction ofrotation of the pinions engaging the racks on the sides of the table, iscontrolled, stops on the under side of the table, and reversingmechanism for actuating said belt-shifter when said reversing mechanismis engaged by the stops whereby the table will be returned to itsoriginal position, substantially as described.

12. The combination of the frame, a table adapted to travel thereon,drilling mechanism, a cam-wheel for feeding the table forwardintermittently, lugs on the table, mechanism controlled by the lugs tothrow the cam-wheel out of gear, driving mechanism,

means for reversing/said driving mechanism so that it will either feedthe table forward or backward, the driving mechanism being so connectedwith the reversing mechanism that it will be thrown into gear to drivethe table forward when the cam-wheel is thrown out of gear, and a stopon the table adapted to reverse the motion of the feed mechanism,substantially as described.

13. The combination of a frame, a table mounted thereon, drillingmechanism, means for feeding the table forward intermittently, means forthrowing this intermittent mechanism out of engagement, independentmechanism for feeding the table either forward or backward, shiftingmechanism, and a shifting-bar in the bottom of the frame, withintermittent mechanism acting on the shiftingbar so as to reverse thetable automatically and ret-urn it to its original position,substantially as described.

14. The combination in a blind-stile-boring machine, of the frame, atable, drilling mechanism, means for feeding the table forward, a clampfor the stiles consisting of three bars arranged side by side,the centerbar being connected to the side bars by linksA and springs, and meansfor moving the center bar to clamp the`stiles on the table,substantially as described.

15. The combination in a blind-stile-boring machine, of the frame, atable, drilling mechanism, means for feeding the table forward, a clampfor the stiles consisting of three bars arranged side by side, one ofsaid bars being rigid, another bar adapted to be moved laterally butheld against longitudinal move` ment, a third bar arranged between theother IOO two and serving as the operating-bar, provil sion forconnecting said bars together, springs connected to the bars for keepingthe clamp in the retracted position, and a lever for moving theoperating-barlongitudinally so as to bring the laterally-moving bar ofthe clamp into engagement with the stiles, substantially as described.

16. The combination in a blind-stile-boring machine, of the frame, atable, boring mechanism, means for feeding the table forward,

Aa clamp for the stiles consisting of three bars arranged side by side,one of said bars being IIS rigid, and means for holding one of the otherbars against longitudinal movement, a third bar being the operating-barand connected to the other two bars, springs also connected to the bars,and a lever for moving-the operating-bar longitudinally, substantiallyas described. y

17. The combination in a blind-stile-boring machine, of the frame, atable, means forv intermittently feeding the table forward, means forreturning the table, a shifter-bar serving` to move into action themeans for returning the table, and a lever connected to said shifterbarand adapted to be acted upon by stops on the table, substantially as'described 18. IThe combination of the frame, a table B,

IZO

sectional rack-plates Z1 and b2 secured to the under side of the table,lugs 197, U3 and b9 also secured to the under side of the table, acamwheel E having a section e adapted to engage the teeth of therack-plates b and b2, a shaft E on which the wheel E is mounted, adriven shaft D geared to the shaft E, means for driving said shaft Dincluding suitable belts, beltshifting mechanism, a floating lever Gforming part of the actuating mechanism of the belt-shifter, a pin e onthe wheel E adapted to move the lever G, the upper end of said leverbeing adjacent to the path of the lugs bf, b8 and b9, substantially asdescribed.

19. The combination of the frame, a table B, rack-plates ZJ' and b2 onthe under side of the table, lugs 197, bs and b9, also on the under sideof the table, a driven shaft F3 having fast and loose pulleys thereon, abelt-shifter g adapted to shift the belt from one pulley to another, afloating lever G connected to the shifter g, the upper end of said leverbeing adjacent to the path of the lugs, a shaft E driven by the shaft F3and having a cam-wheel E thereon, the cam-section of said wheel engagingthe teeth of the rack-sections, and a pin e' on said wheel adapted tomove the lever G, substantially as described.

20. The combination of the frame, a table B, rack-plates on the underside of the table, lugs bl, be and b9, arranged opposite the spacesbetween said rack-plates, a driving-shaft F, a drum-shaft F2 belted tothe driving-shaft, a shaft F3 having fast and loose pulleys thereon andconnected by belts to the drum-shaft F2, a pinion on the shaft F3, ashaft D having a gear-wheel thereon meshing with said pinion, a shaft Eat right angles to the shaft D and i geared thereto by bevel-wheels, acam-wheel on said shaft E', the cam of said wheel engagin g therack-teeth on the under side of the table, a belt-shifter for moving thebelt that drives the shaft F3, a floating lever connected to saidbelt-shifter, the upper end of said lever being adjacent to the path ofthe lugs on the under side of the table, a spring g3 connected to saidlever, and a pin e on the camwheel acting upon the floating lever,substantially as described.

2l. The combination of the frame, a table B, a driven shaft D, a shaft Egeared to the shaft D, a feed cam-wheel on said shaft, racks on theunder side of the table with which the camwheel engages tointermittently move the table forward, a drill-frame, drills carriedthereby, pivoted levers C5 connected to the drillframe, cams on theshaft D for actuating the levers to draw the drill-frame down, withmeans for driving the drills carried by the drill-frame, substantiallyas described.

22. The combination of the frame, a table on which the stiles to bedrilled are mounted, a drill -frame adapted to guides arranged above thetable, drill-spindles carried by said frame, means for driving thespindles, adjustable rack-plates made in sections and secured to theunder side of the table, lugs 117, D8 and b9 also adjustable and securedon the under side of the table, a driven shaftD having cams c at eachside, levers c5 pivoted to the frame and actuated by the cams, aconnecting-rod c, slides c4 connected to the rods and carrying thedrill-frame, a longitudinal shaft E geared.

to the shaft D, a cam-wheel E on said shaft E' having a cam-section eadapted to engage the teeth of the rack-plates on the under side of thetable means controlled by the lugs 127 for throwing the shaft D out ofgear during certain portions of the movement, and independent mechanismfor driving the table forward while the shaft D is out of gear,substantially as described.

23. The combination of the frame A, table B, means for intermittentlyfeeding the table forward, means for throwing such intermittent feed outof action, racks on each side of the table, pinions engaging said racks,means for driving said pinions, and shifting mechanism for reversing themovement of the driving mechanism so that said mechanism will drive thetable either forward or backward, substantially as described.

24C. The combination of the frame, the table, racks on the under side ofthe table suitablyspaced apart, lugs also on the under side of the tablearranged 'opposite the spaces of the racks, mechanism engaging saidracks for feeding the table forward intermittently, mechanism controlledby the lugs for stopping the intermittent forward feed of the table, arack secured to one side of the table, a pinion engaging said rack,means for Vrotating the pinion to drive the rack either forward orbackward, reversing mechanism, and stops on the table for controllingsaid reversing mechanism, substantially as described.

25. The combination of the frame, a table, intermittent mechanism fordriving the table forward, a shaft F3, fast and loose pulleys on theshaft controlling the mechanism for feeding the table forward, abelt-shifter r/ for shifting the belt onto the fast or the loose pulley,independent means for driving the table either in the forward or reversedirection, a shaft connected to said mechanism, loose pulleys on saidshaft and a shifter G for throwing either of the loose pulleys into gearwith the shaft, a lever g4 connecting the two Shifters, a cross-bar g towhich this lever is pivoted, a rope-drum, a lever N2 controlling theposition of said rope-drum so as to throw it into or out of gear withits shaft, a lever J controlling the reversing mechanism, a rope securedto the drum and connected to said lever J, and a longitudinalshiftingbar I having projections t', t', t2 and coacting with andserving to move the Shifters g and G', bar g and lever N2, said barserving also to move the lever J which is pivotally connected thereto,substantially as described.

26. The combination of the frame, the table B, racks at the side of thetable, pinions h6 engaging said racks, shafts H', pinions h.5 meshingwith the pinions 7b, a shaft H geared to the shafts H', loose pulleys onsaid shaft H driven in opposite directions, clutching mechanism forclutching either loose pulley to the shaft, a shifter G' controlling theposition of the pulleys, with means for operating said shifter,substantially as described.

27. The combination of the frame, a table, means for intermittentlyfeeding the table forward, means for throwing` out said forwardfeedmechanism, a driven shaft H, loose pulleys on said driven shaft, meansfor throwing one or the other of the pulleys into engagement with theshaft, pinions driven by said shaft and adapted to racks on the Ltable,a shifter-bar I, a pivoted lever J connected to said shifter-bar, arope-drum, ropes secured to said drum and connected to the lever J, a

-shaft N' on which the rope-drum is mounted,

clutch mechanism between the drum and the shaft, a lever N2, a shaft P,a rope connected to the lever and passing around a pulley on said shaft,a toothed segment p on the shaft P adapted to 'engage the rack on thetable so that when the table is reversed the segment will move apredetermined distance, shifting the rope-drum and throwing theintermittent feed into operative position, substantially as and for thepurpose set forth.

2S. The combination in a machine for boring the holes in blind-Stiles,of a frame, a table adapted to travel thereon, aV rack on each side ofthe table, pinions engaging said racks, a shaft H geared to saidpinions, loose pulleys on the shaft, clutch mechanism by which eitherone of the pulleys can be thrown into gear, means for driving thepulleys in opposite directions, a pulley-shifter G', a rack on the underside of the table, va cam-Wheel engaging said rack to feed'the tableforward intermittently, a shaft F3 having fast and loose pulleys thereonand adapted to drive the cam-wheel, a pin on the cam-Wheel, a oatinglever G engaged by said pin, a belt-shifter g connected to the floatinglever, lugs on the under side of the table adjacent to the path of thelever G, a driven shaft N', a rope-drum on said shaft, clutch mechanismtherefor, a lever N2 for throwing the drum into and out of engagementwith its shaft, a toothed segment engaging one of the racks of thetable, a shaft on which the segment is mounted, a rope-wheel on saidshaft, and a rope extending from said wheel to a lever N2, a lever J, arope extending from the lever J to the rope drum, a shifter-bar I towhich said lever .I is pivoted, a cross-bar age, a connecting-lever g4pivoted to the bar g and engaging the beltshifter g and a pulley-shifterG', projections on the shifter-bar I adapted to operate the belt-shifterg, the bar g4, the pulley-shifter G' and the lever N2 when the lever Jis moved, and stops a2, so, on the table for actuating the lever J,substantially as and for the purpose set forth.

In testimony whereof I have signedy my name to this specilication in thepresence of two subscribing witnesses.

HUGH LOUIS MANNING;

Witnesses:

THos. F. MANNI'NG, Jos. H. KLEIN.

